Improve network checks

virtweb_backend/src/utils/net_utils.rs

@@ -47,10 +47,15 @@ pub fn is_mac_address_valid<D: AsRef<str>>(mac: D) -> bool {
     lazy_regex::regex!("^([a-fA-F0-9]{2}[:-]){5}[a-fA-F0-9]{2}$").is_match(mac.as_ref())
 }
 
+pub fn is_net_interface_name_valid<D: AsRef<str>>(int: D) -> bool {
+    lazy_regex::regex!("^[a-zA-Z0-9]+$").is_match(int.as_ref())
+}
+
 #[cfg(test)]
 mod tests {
     use crate::utils::net_utils::{
         is_ipv4_address_valid, is_ipv6_address_valid, is_mac_address_valid, is_mask_valid,
+        is_net_interface_name_valid,
     };
 
     #[test]
@@ -98,4 +103,13 @@ mod tests {
         assert!(is_mask_valid(6, 128));
         assert!(!is_mask_valid(6, 129));
     }
+
+    #[test]
+    fn test_is_net_interface_name_valid() {
+        assert!(is_net_interface_name_valid("eth0"));
+        assert!(is_net_interface_name_valid("enp0s25"));
+
+        assert!(!is_net_interface_name_valid("enp0s25 "));
+        assert!(!is_net_interface_name_valid("@enp0s25 "));
+    }
 }